TW396683B - Method of and apparatus for controlling transmission power in a communication system - Google Patents

Abstract

A forward link power control mechanism in a remote station (6) measures reserve link power control bits which are transmitted by one or more base stations (4a, 4b, 4n) on a forward traffic channel (10a). At the remote station (6) the reverse link power control bits from multiple base stations (4a, 4b, 4n) or multiple signal paths are measured, combined, and filtered to yield an improved measurement of the forward link signal quality. The reverse link (12a, 12b) power control bits which are deemed unreliable are omitted from use in the power control loops. The remote station (6) generates a set of forward link power control bits in accordance with the measurements and transmits these bits to all base stations (4a, 4b, 4n) in communication with the remote station (6). Each base station (4a, 4b, 4n) adjusts its gain of the forward traffic channel (10a) in accordance to its measurement of the forward link power control bit. The gains of the forward traffic channels (10a) of the base stations (4a, 4b, 4n) are connected periodically so that erroneous reception of the forward link power control bits by the base stations do not accumulate.

Description

Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 __. B7 _ V. Description of the invention (1) Background of the invention 1. Scope of the invention The present invention relates to methods and devices for controlling transmission power in a communication system. More specifically, the present invention relates to a new and improved method and apparatus for power control in a CDMA communication system. 2. Description of related technologies The use of coded multiplexing (CDMA) modulation technology is one of many technologies and is used to assist the communication of many system users. Other multiplexed communication systems such as time division multiplexed access (TDMA) and frequency division multiplexed access (FDMA) are known in the art. However, CDMA's spread-spectrum modulation technology has many notable advantages over other modulation technologies for multiplexed communication systems. The use of CDMA technology in a multiplexed communication system has been disclosed in U.S. Patent No. 4,901,307, entitled "SPREAD SPECTRUM MULTIPLE ACCESS COMMUNICATION SYSTEM USING SATELLITE OR TERRESTRIAL REPEATERS", which is designated as a patent of the present invention and here Listed for reference. The use of CDMA technology in a multiplexed communication system is also disclosed in US Patent No. 5,103,459, and its title is "SYSTEM AND METHOD FOR GENERATING SIGNAL WAVEFORMS IN A CDMA CELLULAR TELEPHONE SYSTEM", which is designated as the patent of the present invention , And listed here for reference. In addition, the CDMA system can be designed to comply with "TIA7EIA / IS-95-A Mobile Station-Base Station Compatibility Standard For Dual-Mode Wideband Spread Spectrum Cellular System", hereafter referred to as IS-95-A standard or TIA / EIA / IS -95-A. -4-This paper size applies Chinese National Standard (CNS) A4 pit grid (210X 297 cm) --------- 策 --η-^-1Τ ----.-- * (Please read the back_ 面 的 注 务 事 # fill in this page) B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (2) CDMA, which uses the inherent nature of a broadband signal, A form of frequency difference that spreads signal energy over a wide frequency band. Therefore, frequency selective degradation will affect only a small part of the CDMA signal bandwidth. Spatial or path variations are obtained by providing multiple signal paths by simultaneously connecting to a mobile user, or via remote stations from two or more base stations. In addition, path differences can be obtained by using a multi-path environment, which allows signals to be processed with spread spectrum with different transmission delays to be received or processed separately. Examples of path differences are the title "METHOD AND SYSTEM FOR PROVIDING A SOFT" in US Patent No. 5,101,501, and the title "DIVERSITY RECEIVER IN A CDMA" in US Patent No. 5,109,390. "CELLULAR TELEPHONE SYSTEM" has been described, both of which are designated as patents of the present invention, and are listed here for reference. Backlink refers to a transmission from a remote station to a base station. On the reverse link, each transmitting remote station creates interference with other remote end stations in the network. Therefore, the reverse link capacity is limited by the overall interference due to transmissions from other remote stations. When the user is not speaking, the CDMA system increases the reverse link capacity by transmitting fewer bits, thereby using less power and reducing interference. To reduce interference and reduce reverse link capacity, the transmission power of each remote station is controlled by three reverse link power control loops. The first power control operation adjusts the transmission power of the remote station by setting the transmission power in inverse proportion to the power received on the forward link. In an IS_95_A system, the 'transmission power is provided by P〇ul = -73-pin, where the pin is provided by the remote station ____ -5- This paper size is applicable to CNS A4 specifications (21Qx297) A7 B7 V. Description of the invention (3 Received dBm power, P⑽ is the remote station transmission wheel power in dBm, and -73 is a constant. The power control loop is often called an open loop. The second power control loop It is to adjust the transmission power of the remote stations so that it is treated as per bit energy-noise + interference ratio £ 1/1. The measured signal quality is the reverse far-end signal received at the base station The signal quality is maintained at a predetermined level. This level is referenced to £ 1 > / 1. ≪ > The base station will measure ^ " of the reverse link signal received at the base station and will— The reverse power control bit is transmitted in response to the measured Eb / I. It is transmitted to the remote station on the forward channel. The reverse power control bit is set b times every 20 milliseconds of data frame, or one 800 bps rate. The forward call channel will carry data and reverse link power from the base station to the remote station Control bit β This second loop is often called a closed loop. CDMA communication systems typically transmit data packets that are treated as discontinuous data frames. Therefore, the required efficiency level is typically determined by the frame error rate (FER) Measured. The third power control loop adjusts the set point so that the required level of efficiency deemed to be measured by the FER will be maintained. To obtain—the required Eb / I of the provided FER. It is the decision to pass the situation. This The third circuit is often referred to as the external circuit printed by the Central Bureau of Standards, Ministry of Economic Affairs and Consumer Cooperatives. The reverse-connected power control structure is in the title "METHOD AND APPARATUS F〇R c〇ntr〇lung" of US Patent No. 5,056,109. TRANSMISSION POWER IN A CDMA CELLULAR MOBILE TELEPHONE SYSTEM "has been disclosed in detail. This designation is the patent of the present invention, and is listed here for reference. Forward link refers to the transmission from-base station to-remote station. To the link, the transmission power of the base station is controlled by several reasons. _ -6-— This paper size applies to China National Standard (CNS) A4 regulations (210x1 ^^ 7 V. Description of the invention (4 A7 B7 by A high transmission power at the printed ground station of the Consumer Standards Cooperative of the Ministry of Standards of the Ministry of Foreign Affairs will cause interference with signals received at other remote stations. Alternatively, if the transmission power of the base station is too low, the remote station can Receive incorrect data transmission. Terrestrial channel degradation and other known factors affect the quality of forward link signals received by remote stations. As a result, each base station will try to adjust its transmission power to maintain the remote The level of efficiency needed on the station. Power control on the forward link is important for data transmission. Data transmission is typically asymmetric with the amount of data transmitted on the forward link over the reverse link. With the effective power control structure on the forward link, in which the transmission power is controlled to maintain the required efficiency level, the overall forward link capacity can be improved. A method and device for controlling forward link transmission power have been disclosed in the title "METHOD AND APPARATUS FOR PERFORMING FAST FORWARD POWER CONTROL IN A MOBILE COMMUNICATION SYSTEM" of U.S. Patent No. 08 / 414,633. This' 633 patent application has been published in It was filed on March 31, 1995 and designated as a patent for the present invention, and is listed here for reference. In the method disclosed in the < 33 patent application, when a transmitted data frame is received incorrectly, the remote station transmits an error indication bit (EIB) message to the base station. The EIB can be a bit included in the reverse talk channel information box or a separate message sent on the reverse talk channel. In response to the EIB message, the base station will increase the transmission power of the remote station. One of the disadvantages of this method is the long response time. The processing delay includes the response from the base station to the base station using insufficient power transmission data frames. 7- This paper size applies the Chinese National Standard (CNS) Λ4 Regulation Orange (210X297 mm). Please read the back-¢ 7 Dongyi- Fill in the matter again I binding line A7 B7 V. Description of the invention (5) Adjust the time interval between the transmission power of the error message from the remote station. This processing delay includes the following time used: (1) the base station uses insufficient power to transmit the data frame, (2) the remote station receives the data frame, (3) the remote station detects a data frame error (for example, a data frame is deleted), (4) The remote station sends an error message to the base station, and (5) the base station receives the error message and adjusts its transmission power appropriately. Before the EIB message is generated, the forward communication channel data frame must be received, demodulated, and decoded. Then, before the bit can be used to adjust the transmission power of the forward talk channel, the mB message carrying of the reverse talk channel must be generated, decoded, and processed. -'Typically the required efficiency level is one hundredth of FER. Therefore, on average, Yuanru Station will transmit an error message indicating that there is a data frame error for every 100 data frames. According to the IS-95_A standard, each data frame is 20 milliseconds long. This type of EIB-based power control is suitable for adjusting forward link transmission power to handle occlusion situations, but it is not effective for decay due to its slow speed 'unless used in the slowest decay situation. The second method of controlling the forward link transmission power is to use the EW of the signal received at the remote station. . Since FER is determined at the received signal, a power control structure can be designed to maintain the required level]. . This design can be difficult if data is transmitted at a variable rate on the forward link. On the forward link, the adjustment of the transmission power determines the data rate in the data frame. At low data rates, per-data bits are transmitted over a long period of time with repeated modulation numbers as described in tia / s_95-A =. Energy per bit ^ is the accumulated power received over time and is obtained by accumulating energy in every tune. For an equal amount of knives, each = material 8-this paper size towards the towel) Α4% # (-Please read the back-1¾ items and then fill in the binding page to order the bookbinding consumer cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs printed A7 B7___ V. Invention Description (6) Bits can be transmitted with disproportionate transmission power at a lower data rate. Typically, remote stations do not know the transmission rate. It is not possible to calculate each elementary energy Eb received until the entire data frame has been demodulated, decoded, and determined the data rate of the data frame. Therefore, the delay of this method is approximately in the previous US Patent Application No. 08 / 414,633, and 'This ratio is one power control message per data frame. This is in contrast to the reverse connection method' which enables one power control message per data frame (bits as in TIA / EIAAS-95-A ) Sixteen times. Other methods and devices for performing fast forward link power control are previously described in U.S. Patent Application No. 08 / 414,633, Patent Application No. 08 / 559,386, Title Archived November 15, 1995. "M ETHOD AND APPARATUS FOR PERFORMING FAST FORWARD POWER CONTROL IN A MOBILE COMMUNICATION SYSTEM ", U.S. Patent Application No. 08 / 722,763, title filed on December 27, 1996 " METHOD AND APPARATUS FOR MEASURING LINK QUALITY IN A SPREAD SPECTRUM COMMUNICATION SYSTEM ", US Patent Application No. 08 / 710,335, Title" METHOD AND APPARATUS FOR PERFORMING DISTRIBUTED FORWARD POWER CONTROL "filed on December 16, 1996, and US Patent Application No. 08 / 752,860, on December 20, 1996 The title of the archive "ADJUSTMENT OF POWER CONTROL THRESHOLD / MEASUREMENTS BY ANTICIPATING POWER CONTROL COMMANDS THAT riAVE NOT BEEN EXECUTED" is described in it and all are designated as patents of the present invention, which are listed here for reference. The basic difference between the backward links is the reverse link and -9-This scale is applicable to the Chinese National Standard (CNS) A4 Regulation (210X297) 犮 --------- ^-,- V--1Τ ----.--- line (please read the note on the back, the matter t, and then fill out this page) Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. invention described p) need not know the transmission rate. As described in the aforementioned U.S. Patent No. 5 5056,109, 'at a low data rate' the remote station does not transmit continuously. When the remote station is transmitting, the remote station will transmit at the same power level and the same waveform structure 'regardless of the transmission rate. The base station determines a power control bit and transmits this bit to the remote station 16 times per data frame. Now that the returning station knows the transmission rate ', when it is not transmitting, the remote station can ignore the power control bit. This allows fast reverse link power control. However, the effective power control rate changes with the transmission rate. For TIA / EIA / IS-95-A, the rate is the entire data frame rate of 800 bps and 1/8 data frame rate of 100 bps. Another reverse link structure is disclosed in U.S. Patent Application No. 08/654, 443,

"HIGH DATA RATE CDMA WIRELESS COMMUNICATION SYSTEM", followed by the _443 patent application, and on May 28, 1996, "Guilou" was designated as the patent of the present invention, which is listed here for reference. According to 443 patent application, the auxiliary The pilot will be referenced in the reverse link. The pilot level is a unique transmission rate on the reverse link. This allows the base station to measure the pilot level and transmit the reverse link power control at a fixed rate To the remote station. SUMMARY OF THE INVENTION The object of the present invention is to provide a method and device for high-speed forward link power control. An object of the present invention is to improve the response time of the forward link power control loop and to measure the response time The transmission power is dynamically adjusted on the forward link to the quality of the link power control bit, and the reverse link power control bits are transmitted on the call channel at multiple times in a data frame. In- ------- Meal-/-J--ΪΤ · ------- ^ (please read #. Noodles note t. Matters before filling in this page) A7 A7 Central Ministry of Economic Affairs "^ -------- V. Invention Description (8)" — The measurement on the L time interval allows the base station to dynamically adjust the transmission power to reduce the interference from its base station and obtain the maximum forward connection capacity. The improved response time allows the power control loop to effectively compensate for the slower decay For fast decay, the blocking interleaver in the communication system is effective. In one aspect of the present invention, a method for controlling transmission power in a CDMA system is provided, which includes the following steps: measuring the first group The amplitude 値 of a bit is compared using a target energy level; and a second set of bits is generated with the comparison step, wherein the transmission power is adjusted according to the second set of bits. Another aspect is to provide a device for controlling a transmission power in a CDMA system, including: a first power control loop that maintains a received signal quality at a target energy level, the first power control loop receiving the first Group of bits, and provide a second group of bits with the first group of bits and the target energy level; and a second power control loop is used to maintain the received signal Measurement efficiency, the second power control loop will receive the wrong indication of the data frame and the efficiency threshold, and provide the target energy level to the first power control loop and the efficiency along with the measured efficiency. Critical. Another aspect of the present invention is to provide a base station controller in a wireless communication system, which includes one or more base stations and one or more remote stations. The controller includes a transmitter for In order to transmit the communication signal and the power control signal simultaneously on a transmission channel, a receiver is used to receive a signal from a remote station in the transmission channel, and the remote station on the transmission channel is -11- This paper size applies the Chinese National Standard (CNS) Λ4 Regulations (210X297 mm) Packing--ί--f _-- IT ---- · --0 {Please read the note on the back ^-^^ This page} A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention Description (9 indicates an attribute of the received communication signal; a controller is used to process the signal received by the receiver, and is based on the Transmitted by a transmitter in a transmission channel Processed control signal to control the power. The present invention also provides a remote station for use in a wireless communication system, which includes one or more base stations and one or more remote stations. The remote station includes a receiver for receiving one or more communications. A signal and a power control signal transmitted by a base station in a transmission channel, a controller for processing the signal received by the receiver; and a transmitter for transmitting the transmission signal in the signal channel. , Which indicates the attributes of the received communication signal. In a specific embodiment of the invention, the remote station measures the reverse link power control bit, which is transmitted on the forward call channel at a rate of 800 bits per second. The reverse link power control bit is inserted into the forward talk channel data stream. The gain of the power control bit is adjusted simultaneously with the gain of the forward link data bit. However, unlike the data bit, the transmission level of the power control bit is not proportionally processed according to the data rate. Home of Power Control Bits ",! The quality of the 品质 is used to adjust the power of the base station. It is an object of the present invention to improve the response time of forward link power control by using energy measurement of the reverse link power control bit. The reverse link power control bits are transmitted at 800 bps. Therefore, the forward link power control structure of the present invention can execute the quality of the received forward call frequency every 1.25 milliseconds. These measurements can be transmitted to the base station and used to adjust the forward connection transmission power. The improved response time allows the base station to effectively compensate for the slow fading in the channel and improve the efficiency of the forward call channel. Another object of the present invention is to allow the speed of the base station's transfer power to be adjusted quickly. Read the notes on the back and fill in this page > -12 Form paper size applies to China (cns position

J. Five invention descriptions (10 A7 B7 The employees of the Central Standards Bureau of the Ministry of Economic Affairs consume printed parts of the cooperative to increase the capacity of the forward link. The power control structure of the present invention allows the car base = station to transmit with the minimum required transmission power, In order to maintain the necessary effect, since the entire transmission power of the base station is fixed, the provided work. Small transmissions will cause inferior transmission power, and can be used for other purposes of the present invention.疋 To provide a reliable forward link power control ... k. 'Reverse link power control bits from many sectors' on the reverse station or to improve the quality of a link signal from the same sector-improvement Will be combined to generate the forward direction. The unreliable reverse link power control bit can be omitted from the use of the power loop. At the base station, the Z link power control bit is connected to the remote station. Received by all base stations of the communication. The forward channel gain of the base station is periodically corrected, so incorrect reception of forward link power and bit does not accumulate. Another purpose of the present invention is to provide Structure to adjust the forward link power to the required data frame error rate, similar to what is done by anti-link. Another object of the present invention is to provide a structure 'to communicate power control bits between base stations. The power control unit that controls the forward link transmission power may or may not receive it correctly at different base stations. This: Provides a base station that will use the necessary information to receive the wrong function. In order to update their forward link transmission power, the simple description of the features, objectives, and advantages of the present invention can be described in detail from a specific embodiment of the present invention and the reference to the drawings published below, so that it can become Private clothing-{-n /-(I read the taboo first and pay attention to the luxury matters first, then save the wood) Ⅱ-

-I I -11 I-.ml · · Ordering ----- 13- This paper size is applicable to China National Standard (CNS) Λ4 specification (2) 〇χ 297 公 f

A7 B7 Printed by the staff of the Central Standards Bureau of the Ministry of Economic Affairs and printed by the cooperative. V. The invention description (11) is more obvious and easier to understand. Among them: Figure 1 is a diagram of the communication system including the present invention and includes a variety of communication with remote stations. Base station; Figure 2 is an example block diagram of a base station and a remote station; Figure 3 is an example block diagram of a forward communication channel; Figure 4 is an example block diagram of a demodulator in a remote station; 5 An example block diagram of a decoder in a remote station; FIG. 6 An example block diagram of a power control processor in a remote station; FIG. 7 is a timing diagram of forward and reverse link power control-control channels Figures; and Figure 8 are timing diagrams of a beneficial correction structure in a forward link power control loop. Detailed description of the preferred embodiment In a system including the present invention, the base station transmits the reverse link power control bit and the data on the forward call channel simultaneously. When reducing interference from other remote stations in the system, the reverse link power control bit is used by the remote station to control its wheel power while maintaining the required efficiency level. The reverse link power control structure is disclosed in the aforementioned U.S. Patent Application No. 08 / 414,633. Due to the sensitivity of processing delay, the reverse connection power bits are not coded. In fact, data is inserted into the power control bits (refer to Figure 3). In this sense, insertion is a process in which one or more code symbols are replaced by power control bits. In the exemplary embodiment, the reverse link power control bit is transmitted at a rate of 800 bps, or a power control bit το every 1.25 milliseconds time slot. The time slot is called a power control group. On the coupling space interval 侓 -14 This paper size applies Chinese National Standard (CNS) A4 regulations (21〇 > < 297 public funds, please read the note on the back and front, and then fill in the binding page and the binding department of the Ministry of Economy Central Standard_Printed by the Bureau ’s Consumer Cooperatives A7 B7 V. Description of the Invention (12) The transmission power control bit will cause the base station to transmit the power control bit to many remote stations at the same time. This causes a crazy amount of transmission power. As a result, the power control bits are virtually arbitrarily placed at 1.25 milliseconds of power control. This is achieved by dividing the 1_25 millisecond time slot into 24 positions and randomly selecting them randomly. With a long PN sequence, The position will be formed in the power green control bit. In the exemplary embodiment, only one of the 16th positions in the power control group will be selected as a starting position, and the last 8 positions are Not selected. The forward call channel is a variable rate channel, and the transmission power of the forward call channel is determined by the data rate. The efficiency of the forward call channel is measured and it is determined by the remote station. Received every Meta-energy dagger. At lower data rates, the same per-bit energy is propagated over a longer period of time, which results in a low transmission power level. In the specific embodiment of the example, it is based on TIA / EIA / IS_95_A is transmitted on the forward link. The IS-95-A standard is provided for transmission using one of two rate groups. The rate group 1 series supports 9'6 kbps, 4.8 kbps, 2.4 kbps, and 1.2 kbps. Data rate. The 9.6 kbps data rate is encoded using the ι / 2 rate of a conventional encoder to produce a symbol rate of 19,2 kbps. The encoded data of the lower data rate is repeated N times to obtain 19.2 ksps symbols Data rate 2 supports 14.4 kbps, 7_2 kbps, 3'6 kbps, and 18 data rates. 14 4 kbps data rate is encoded using 1/2 the rate of the traditional encoder inserted to obtain- The rate is 3/4. Therefore, the symbol rate is also 192 ksps at a data rate of 144kbps. The rate group is selected by the base station between the steps of a call initiation, and is typically used to retain the validity during communication, although the transmitted rate -15- The paper size applies the Chinese National Standard (CNS) A4 Regulations (2 丨 0 ^ 7 公 fy --------- install—J ----— order * ------ 0 (please read #. 面 的 NOTES and fill in {马 页) A7 _____ -___ B7 V. Description of the invention (13) The rate can be changed during the call. In the exemplary embodiment, the duration of the reverse link power control bit period is two-character 1-wide (1 042) 0 combination 1 And a symbol width (52.1 MSec) of rate group 2. f In this specification, the transmission gain of the forward call channel is referred to as the transmission rate, and each energy bit of the signal (call). A data frame with a low data rate is made up of fewer bits transmitted per bit energy of the indicated chirp, so it is transmitted with less power. In this method, the power level of the directional link channel is proportional to the data rate of the current data frame to be transmitted. The transmission gain of the reverse link control bit is referred to the energy per bit ε "power control" of the reverse link power control bit inserted into the data stream. Each reverse link power control bit has the same duration , And therefore these extraordinary power levels do not determine the data rate in the inserted data frame. These characteristics of the power control bits are provided by specific embodiments to provide an improved forward link power control structure. Forward The operation of link power control will cause the base station to adjust the gain of the call channel. In the specific embodiment of the example, each adjustment of the benefit of the call channel will also provide a gain of the reverse link power control bit, so the two gains will be simultaneously Adjustment. If the quality of the forward link signal received by the remote station is determined by measuring the amplitude of the reverse link power control bits, these reverse link power control bits are transmitted on the forward call channel. Data The quality of the bit is not a direct Jj quantity, but 疋 is inferred from the amplitude measured by the reverse link power control bit. This is reasonable, since power control Metadata and call data will be affected by changes in the transmission environment at the same time. Therefore, if the amplitude of the data bit 疋 is maintained at a known rate of the amplitude of the power control bit, the specific embodiment ___ ________ '16-This paper scale Applicable for China National Cake (: Ganga E

Please read the memorandum. Attention · Matters need to be filled in again. 裳 I I order I I line printed by the Central Bureau of the Ministry of Economy, printed by the Shellfish Consumer Cooperatives A7 A7 B7 V. Invention description (14 will operate normally. Punishment L, The trunk reverse link power control bit is at a low transmission power level—11. In addition, the power control bit can be transmitted from many base stations in the communication system. The amplitude of the power control bit is more accurately measured It is obtained by concatenating = 2 control bits, and adjusting the amplitude of the control bit according to the phase and amplitude of the pilot signal. The filtered amplitude of the power control bit is used for transmission of the two ground stations: Power, so that the quality of the forward link ~ 仏 received at the remote station is maintained at the required level. The 眞 direction link power. Rate control structure operates two power control loops. The first power = system The closed loop of the loop adjusts the transmission power of the base station so that the reverse link power control bit received by the S-end station has the amplitude quality of the target wave at the target energy level. In most cases, the target energy level ^ is The FER of the forward call channel is determined. The end station will ask the base station to adjust the forward link transmission power by transmitting the forward link power control bit on the reverse link. Each forward link power control bit will cause the base station to increase or decrease relative to The increase of the call channel. The second power control loop of the external circuit is a structure for the remote station to adjust the target energy level, so as to maintain the required FER. In order to improve the effectiveness of the forward link power control structure, such as in the channel The "Slow Decay" closed loop is designed to operate at high speed. In the example embodiment, the "reverse link power control bit from the quality measurement of the forward link signal is transmitted at 800 bps" and the forward link power The control bit is also transmitted at 800 bps on the reverse talk channel. Therefore, the transmission power of the base station can be adjusted up to _ times per second. However, because the forward power control is -17- m-equipment-^- /-Order ------- line (please read the notes on the back ® * before filling in {I? Page). The paper standard printed by the Staff Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs applies Chinese national standards ( CNS) A4 Regulations (210X297) A7 A7 Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 18- V. Description of the Invention (15) Bits are transmitted with uncoded and minimal energy. Some forward power control bits cannot be successfully received at the base station. A base station can be selected to ignore any forward power control bits that are not completely reliable. In the exemplary embodiment, the second forward link power control loop of the outer loop will use the data frame once or every second. Update the target energy level once every 50 times. The outer loop will set the target energy level that will cause the desired FER efficiency. When the transmission environment has not changed, the outer loop should quickly determine the appropriate target energy level. , And keep the target on level. When there is a change in channel characteristics (for example, an increased interference level, a speed change of a mobile user, or the appearance or disappearance of a signal path), different target energy levels may be required. Continuous operation in the same FEl. Therefore, the outer loop should quickly move the target to a new level to adapt to the new conditions. 1. Circuit description Please refer to each figure, which shows a communication system included in a specific embodiment of the present invention, which is composed of many base stations 4 and many remote stations 6 (only one remote station is shown for simplicity). End station 6). The system controller 2 is connected to all base stations 4 and the public switched telephone network (PSTN) 8 in the communication system. The system controller 2 communicates between the user connected to the PSTN 8 and the user on the remote station 6. The data transmission from the base station 4 to the remote station 6 will occur on the forward link via the signal path 10. The transmission from the remote station stone to the base station 4 will occur on the reverse link via the signal path 12. The No. path can be a straight path such as the signal path 10a, or a reflection path that reflects the path 14. When the signal transmitted from the base station 4a reflects the private paper scale, suitable for financial and household materials (CNS) A side M 210 ^ 97 公 楚 --------- ^ ------- ir ^ ------ Μ (Please read the note t- on the back before filling in this page) Central Bureau of Standards, Ministry of Economic Affairs Employee Consumer Cooperative Co., Ltd. A7 __________B7 V. Description of the Invention (16) '~ _ ~~ When the reflection source 16 is off, the reflection path 14 will be generated and reach the remote station 6 through a line different from the visual path line. Although, as shown by the block in Fig. 丨, the reflection source 16 is a result artificially produced in the environment, its remote station 6 is operating, such as a building or other structure. An exemplary block diagram of the base station 4 and the remote station 6 expressed by the present invention is shown in FIG. 2 on the cheek. The data transmission on the forward link originates from the data source 20 'which provides the data to the encoder 22. An example block diagram of the encoder 22 is shown in FIG. In the encoder 22, the CRC encoder 62 block uses a CRC polynomial to encode data, which in an exemplary embodiment conforms to the CRc generator described in the IS-95-A standard. The CRC encoder 62 appends CRC bits and inserts the tail bits of the group code into the data. The formatted data is provided to a convolutional encoder 64, which convolves the encoded data and supplies the encoded data to a symbol repeater 66. The symbol repeater 66 repeats each symbol Ns several times in order to maintain a fixed symbol rate on the output of the symbol repeater 66. The repeated symbols are provided to the block interleaver 68. The block parent error generator 68 rearranges the symbols and provides the interleaved data to the modulator (MOD) 24. In the attenuator 24, the inserted data is expanded by a multiplier 72 using a long pN code, which disturbs the data, so it can only be received by the receiving remote station 6. The long PN extension data is multiplexed via MU 74 and provided to the multiplier 76, which contains data having a Walsh code relative to the call channel assigned to the remote station 6. The data covered by Walsh also extends the short PNI and PNQ codes by multipliers 78a and 78b, respectively. The short PN extension data is provided to the transmitter (TMTR) 26 (refer to Figure 2), and its filtering, modulation, conversion and amplification __-19- This paper size is applicable to China National Standards (CNS) approval .---- Wire (please read the notes before you fill out this page) A7 B7 V. Description of the invention (17) # The signal modulated by ## will pass through the duplexer 28 and pass through the signal path. 10 and transmitted from the antenna 30 on the forward link. The duplexer 28 cannot be used at some base stations. MUX 74 疋 is used to insert backlink control bits into the data stream. The power control bit is a one-bit message that commands the remote station 6 to increase or decrease the reverse link transmission power. In the exemplary embodiment, a power control bit enters the data stream with a power control group every 1.25 milliseconds. The duration of the reverse link power control bit is predetermined and determines the set rate used by the system. The position of the reverse link power control bit is inserted, 矣 is determined by the long PN sequence from the long PN generator 70. The output of MUX 74 includes data bits and reverse link control bit power. Please refer to FIG. 2. At the remote station 6, the forward link signal is received by the antenna 102, which is provided to the receiver (rcvr) 106 via the duplexer 104. The receiver 106 filters, amplifies, demodulates, and quantizes the signal to obtain digital I and Q baseband signals. The baseband signal is provided to a demodulator (DEMOD) 108. The demodulator 108 does not use short pni and PNQ codes to extend the baseband signal. 'It does not cover unspread data of the same Walsh code used at base station 4. It does not spread data not covered by Walsh with long PN code. And provide the demodulated data to the decoder 11 〇. Printed by the Central Bureau of Standards of the Ministry of Economic Affairs—Consumer and Cooperative Cooperatives —-------- Installation— (Please read the F. face note on the warehouse before filling out this page) Decoder 11 shown in Figure 5 The square in the '0' in the deinterleaver 18 will rearrange the demodulated data symbols and provide the non-interleaved data to the Viterbi decoder 182. The Viterbi decoder 182 decodes the convolutional coded data and supplies the decoded data to the CRC check element 184. CRC check element 184 is to perform CRC check and provide the checked data to the receiving end. -20- This paper size applies to China National Standards (CNS> Λ4 Regulations (2 丨 0X297 male f) A7 B7 Member of the Central Standards Bureau of the Ministry of Economic Affairs 4 Printed by the Consumer Cooperative 5. Inventive note p 112. 2. Measurement bits for power control An example block diagram is used to measure the reverse link ^ rate control shown in the figure. Circuit of energy. The digital chemical baseband signal from the receiver will be provided to the -gate 16GaJU6Qm (hereafter referred to as 160). Each correlator 160 can be designated as a different signal path from the same base station 4 or from A different transmission from a different base station 4. In each specified correlator 16o, the baseband signal is not expanded with the short PNI and PNQ codes by the multiplier 162. At each -correlator 16o The short ρΝΐ and pNQ codes in the can have unique compensation according to the base station 4 from the signal transmission, and are consistent with the propagation delay experienced by the correlator 160 to demodulate the signal. The short pN non-spread data is composed of the Walsh code. Multiplier 164 does not cover This Walsh code is assigned to the call channel to be received by the correlator 160. The non-contained data is provided to the filter 168 'which accumulates the energy of the non-covered data in a symbol time. Wave data 68 includes data and power control bits. The short PN non-extended data 162 from the multiplier also includes the pilot signal. At base station 4, the pilot signal is covered by all zero sequences that conform to Walsh code 0. Therefore The pilot signal must be obtained without Walsh non-covered processing. The short PN non-expanded data is provided to the filter 166, which performs low-pass filtering of the non-expanded data to remove the signal from other orthogonal channels (such as call channels, Mobile channel, and access channel) to remove signals, and these orthogonal channels are transmitted in the forward direction by the base station 4. The two composite signals (or vectors) are filtered pilot signals and filtered data. This paper size is applicable to China National Standard (CNS) A4 (2l0X 297mm) --------- Installation-<-Η--Order · ------ Line ( (Please read # -Position of Positioning before filling out this page) A7 B7 Five 、 Explanation of invention (19

Please read the description, the description, the event and refill the page, and the power control bit is provided to the dot product circuit 17, which will calculate the dot product of the two vectors in a method known in the art. An exemplary specific embodiment of the dot product circuit ⑺ has been described in detail in US Patent No. 5 506 865, title CARRIER DOT PRODUCT CIRCUIT, which refers to 1 Ding Ding as the patent of the present invention, which is listed here for reference. The dot product circuit i7〇 projects a vector conforming to the filtered data onto a vector conforming to the filtered pilot signal, multiplies the vector amplitude, and provides -symbol proportional output s 乂 ㈠ to the demultiplexer (DEMUX) I72. The symbol Sj⑽ It is used to indicate the output from the m-th correlator 160m during the jth symbol. The remote station 6 has knowledge of whether the j-symbol of the current data frame is relative to a data bit or a reverse link power control bit. Therefore DEMUX 172 will direct the vector shovel (4 (1), Sj (2), ..., Si (M)) rotated by the correlator to the data combiner 174 or the power control processor 12. The data combiner 174 will Sum their vector inputs, use long pN code non-spreading data 'and generate demodulation data for decoder 110 shown in Figure 5. Line

The Ministry of Economic Affairs Standards Bureau has eliminated the power of the cooperative association. The reverse link control power bit is processed by the power control processor 120, as shown in detail in FIG. The bit accumulator i90 will accumulate one or more symbols Sj (m) over the duration of a power control bit to form a reverse link power control bit (b / m). The symbol Wm) is used to indicate that the reverse link control power bit conforming to the m-th correlator 16111 during the i-th power control group. The vectors bi (2),., Bi (M)) of the power control bits are sent to the same bit accumulator 192. In the TIA / EIA / IS-95-A standard, 'When more than one base station 4 communicates with the same remote station 6,' the base station 4 can be configured to transmit the same or different reverse link power control bits. When they are actually in the same position, 22 paper sizes are applicable to Chinese national standards (CNS> Λ4 specification (2 10 × 297 mm) B7 V. Description of the invention (2) The base station 4 is typically configured to transmit the same The power control bits L are, for example, when they are different vectors of a unit. The base stations 4 that do not transmit the same power control bits are typically located at different positions. 1 = Standard is also specified by the base station 4-structure, It is configured to transmit the same power control bit, and this standard will be confirmed by the remote station 6. In addition, when the remote station 6 receives a single-base station transmission through many transmission paths, on these paths The received reverse link power control bits are essentially the same. The same bit where the accumulator 192 combines the reverse link power control bits 7Lb known to be equal, the output of the (m) e bit accumulator 192 would be The vector of the reverse link power control bit it (㈣i⑴, bi⑺, b] (p)) corresponds to the p-independent reverse link power control bit stream. The sign bit vector sgn (BI (p)) is passed to the reverse link power control logic 194. The IS-95-A standard states that if any symbol is negative, the remote station 6 will reduce its transmission power level. If all the sign bits sgn (B ^)) are positive, the remote station 6 will increase its transmission power level. The reverse link power control logic i 94 will process the sign bit sgn (Bi (p)): as specified in IS_95_A. The output of the reverse link power control logic 194 is a single bit, which indicates whether your end station 6 should be increased or decreased for the purpose of closed loop reverse link power control. Transmission gain. This bit is provided to the transmitter 136 (see Figure 2), which can adjust the gain accordingly. The amplitude of the reverse link power control bits, rather than their polarity (e.g. positive or negative sign), indicates the signal quality measured by the remote station 6. The non-identical bit 70 accumulator 196 will therefore remove the modulated data and operate on the absolute link of the reverse link power control bit τα | & (ρ) |, which will be based on the following public group ____ -23- This paper scales Guan Jiaxuan (cns V. Description of invention (21 go xt: culture f, A7 B7 印 printed by the Bureau of Standards and Industry Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives, "f, factors" are specified non-linear Sequence, and? Is independent of the reverse connection: the number of force-rate controlled flow. In the exemplary embodiment, the system is equal to the measurement of the absolute amplitude of the power control bit-stream, and the core is 2 It is suitable for the energy measurement of the power control bit. Others can be used, and the system can not be used: it will not reach the scope of the present invention. It is not the same bit, and the output of '^, 96' is different. It refers to the energy per bit received in the reverse link power control sub-channel during the first power control group. In the reverse link, the power control bits are not coded, and are therefore particularly vulnerable to interference. Affected errors. The fast response time of closed loop reverse link power will be reduced in The effect of this type of error on the power control efficiency of the link 'Since these error adjustments of the transmission gain of the remote station 6 can be compensated in the subsequent power control group. However, since the amplitude of the power control bit is treated as a forward link Signal quality—indicating use, the filter 198 is used to provide a reliable measurement of the amplitude of the power control bits. The filter 198 can be implemented using one of the designs known in the art, such as an analog filter, wave filter, -Digital chirp. For example, chirp 198 can be made as a finite impulse response (FIR) filter or an infinite impulse iir filter. Manufactured using -HR furnace wave filter, the power control bit is filtered It can be calculated according to the following formula: (2). Please read the note on the back * to see how it will be bound 24- This paper size is applicable to Chinese National Standards (CNS) M Regulations (ϋ ^ 297 公 楚 _ Staff of Central Bureau of Standards, Ministry of Economic Affairs Consumption cooperative seal ^ A7 ___ B7 ~ 1 ~ ~ —-— _ 5. Description of the invention (22) where Xi is the power control bit calculated by the non-identical bit accumulator 196 during the i-th power control group Amplitude, aj is the coefficient of the j-th filter tap, and y is the amplitude of the power control bit from the wave filter 198. Since the delay will be considered to be reduced, so the coefficient of the F1R filter tap can be selected so that fir tear waves The coefficients of the controller have smaller indexes (such as a0 > a! ≫ a2 > ....). As described in this exemplary embodiment, in order to quickly perform forward link power control, The processing performed by the remote station 6 has been described. It shares the various elements used by other subsystems in the remote station 6. For example, the correlator 160a is shared with the data demodulation subsystem, and the accumulators 19 and 192 are shared with the reverse link power control subsystem. The practice of the present invention does not determine any special fabrication of another subsystem in the remote station 6. Obviously, the production of this technique is well known in the art to perform forward power control processing. The production has been described here, and therefore does not depart from the scope of the present invention. 3 · Forward link power control outer loop The filter amplitude% of the reverse link power control bit from the filter 198 indicates the quality of the forward link signal received at the remote station 6. The critical comparison circuit 202 compares the filtered amplitude yi with a target energy level z. In the exemplary embodiment, if yi exceeds z, the remote station 6 transmits zero (, 0 ') bits on the forward link power control sub-channel to indicate that the -forward call channel is transmitted to the remote station. Each base station 4 of 6 should reduce the gain of the talk channel. Conversely, if yi is less than z, the remote station 6 will transmit 1 ('Γ) bits on its forward link power control to indicate that every base station 4 should benefit from the forward channel. These zeros and ^^ are forward link power control bits 値. -25- This paper size is subject to Chinese National Standard (CNS) A4 (210X 297 Public Magic (谙 Please read the note t. On the back before filling this page).

* 1T Line V. Description of the invention (23) A7 B7 The consumption cooperation of employees of the Central Ladder Bureau of the Ministry of Economic Affairs of the People's Republic of China. Although the present invention is connected to the power control bit 7L in the forward direction of each power control group, as described herein, the present invention Suitable for more bits of high resolution. For example, the critical comparison circuit 202 can quantify the difference between the filtered amplitude yi of the reverse link power control bit and the target energy 値 z at many levels. For example, a two-bit message on the forward link power control subchannel can be used to indicate one of the four levels of the (yi-Z) amount. Alternatively, the remote station 6 can transmit the filtering amplitude% 値 on the forward link power control subchannel. The base station 4 does not have to adjust its transmission power on a per-power control group. Due to the low energy level of the reverse link power control bit, the remote station 6 will receive wrong bits or greater attenuation due to noise and interference from other users. The filter 198 improves the accuracy of the measurement, but does not reduce the error completely. In the exemplary embodiment, if it is determined that the measurement is unreliable, the remote station 6 can omit a forward link power control bit transmission from the base station 4. For example, the remote station 6 can compare the filtered amplitude% to a rated energy chirp. If it is lower than the rated energy, the remote station 6 will ignore the yji of this power control group, and therefore will notify the base station 4 (for example, by not transmitting the ―Be Xianglian 'power system bit to the base station 4, Or by using -⑯ in the forward link power control (from the-group to indicate low received energy). In addition, forward link power control bits are also transmitted at low energy levels. Because the base station 4 also commits to compare the measured forward link power control bit with its own rated amount of money ，, rather than the bit located at the rated energy 値 ^. In the exemplary embodiment, the remote station 6 will make an absolute decision, based on the RC check and the output of the element 194 and other such as the Yamam0t〇 matrix and re-coded & paper rule, 26- (Please read the Note: Please fill in this page again.) -Install. 、-= * 0 Line A7 B7 V. Description of the invention (24) Z * ⑶ Other data frame quality matrix , Whether to decode the data frame. This decision has been excerpted from the error indicator (㈣), which will be set to ‘1’ ’to indicate—the data frame is wrong, otherwise it is set to 〇 ,. In the following items, it is assumed that the remote station 6 is a manufacturer-cafe, and it is necessary to decide that the received data frame is wrong. In the preferred embodiment, the external loop used to control the forward link control is the same as what is actually transmitted on the reverse link. However, the unique purpose of controlling the validity of the four data frames for the special purpose of controlling the external loop It can also occur without departing from the scope of the invention. • In the exemplary embodiment, the outer loop is updated every data frame or every 16 power control groups. The outer loop updates the target energy level z in the remote station 6. This configuration is performed by the critical adjustment circuit 200 shown in FIG. When each data frame is decoded, a data frame in the form of £ IB will be provided to the critical adjustment circuit 200 as shown in FIG. The threshold adjustment circuit 200 updates the target energy level z, and enables the new energy standard level to be used in the threshold comparison circuit 202. In the first specific embodiment, the critical adjustment circuit 2000 will update the circuit z 値 according to the equation: = | " of * -1 + y 4-1 = 1 ----------- 1λ · 丨 Valley 4_ 丨 = 0, where Zk is the target energy level on the kth data frame, ek i is the data frame error on the (k_ 1) th data frame, and r is the target to be applied The energy level is an upward step size, and § is applied to the target energy level—downward size. In the exemplary embodiment, if a data frame of the (kd) data frame exists by mistake, ek〗 will be set to! , Otherwise it is 0. The paper size of the 値 -27 sheet of the factory and s applies to the Chinese National Standard (CNS) A4 specification (2 丨 0X297 mm ·---------- Suppression of clothing-^-/-1T --- -ί-. ^ (谙 Read the notes on the back and the front before filling out this page) ("丨 ～ 占 (¾- 丨) ekl = 〇 Description of the invention (25 will be selected to provide FE) ^ 〇_ Desired bit = 此. This option one-similar to the heart: When the frame error occurs, the probability of frame error will be substantially reduced. When there is no data frame error, the data is reduced to reduce the transmission power. Decay-beak is early, although the linear ratio of these variables can also be used .: In the two specific embodiments, this stepwise change can produce a quasi-one function, so the modification of Zk is determined at the present purpose ^ therefore the 'equation ( 3) The dragon is modified as shown below: —1 e * -i-1 ⑷ In the specific embodiment of the example, the remote station 6 will complete the demodulation of the data frame and update it in the middle of the continuous data frame. Target energy level ~. For example, if the f-th data frame is received incorrectly, the probability of a data frame in the _ data frame being wrong 0 is greater. This is because The adjustment does not have an immediate effect on the FER efficiency until the system has enough time to generate—convert to a new operating point. Therefore, the second error of two consecutive data frames should not be resolved to indicate the efficiency of the target energy level, It is only a result of updating the first data frame error. _ In a preferred embodiment, after the first data frame error, the base station 4 will increase the overall channel channel gain. Then, if it occurs in the following data frame, it will Ignore the second data frame error. Apply this concept to the second embodiment described above 'its equation (the phantom becomes: _______________ ** 28-This paper size applies the Chinese national standard (CNS> Α44 格 (210χ 297 Public address> Install f ---- order ------- line (please read the back-to-side precautions before filling out this page) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 26) 2 *; V, ek., = L, e ^ 2 ek-i = Ut_2 ek- \ — 〇A7 B7 (5) Member of the Central Bureau of Standardization of the Ministry of Economic Affairs of the People ’s Republic of China, H Consumer Cooperative is printed in the specific embodiment of the example , The outer loop power control structure will be marked on all remote stations 6 To ensure consistency of all remote stations 6. During a call's initiation phase, r and § 値 can be transmitted to each remote station 6 through base station 4 ^ During the call's forward path, these The new parameter of the parameter can also be specified by the base station 4. In a pass-to-communication system that complies with the IS-95-A standard, when the remote station 6 enters the soft handover, the gain of the forward call channel will typically be Reduce. This method will not reduce the FER efficiency. Since the data bits received from the base station 4 and received at the remote station 6 will be combined, a larger mixed signal will be generated before decoding. However, the reverse link power control loop in the remote station 6 does not combine the reverse link power control bits received from different base stations 4, since these bits are independent. The reduction in gain on the forward talk channel can increase the bit rate of the power control bit stream transmitted on the forward talk channel and thus reduce the reverse link power control structure. To change this situation 'When the remote station 6 enters the soft handover, the gain of the power control bit typically advances. This causes the gain of the reverse link power control bit to be slightly higher than the data gain bit 0 whenever the remote station 6 is in soft handover. In a specific embodiment, the power control bit from a different base station 4 Absolute 値 is combined according to equation (2). Therefore, the beneficial advancement of the power control bit will cause a larger edge than the relative data bit. Caused by the remote station 6 requirements-no -29 (谙 first read the note of #. Surface and then fill in this page) • installed ·, tr wood paper size applicable to China National Standard (CNS) A4 «; fe ί ?? Π V \-. V. Description of the invention (27) A relatively large yi 値 will reduce the transmission power from the base station 4, which can cause errors in the data channel or multiple data frames on the forward communication channel. In this case, the target energy 値 z set by the external circuit is automatically increased. After an instant, the outer circuit will then adjust the target energy 値 z to the new nominal 値. To try to obtain these effects',% can be determined proportionally before comparing with the target energy level z. Alternatively, when the remote station 6 enters the soft handover, the target energy level Z will increase slightly. This can reduce the chance of these errors. In a specific embodiment, the comparison of the filtering amplitude% and the target energy level Z is performed in the power control processor 120 (refer to FIG. 2). In addition, the target energy level update according to equations (3), (4), or (5) is also performed in the power control processor 120. The controller processor 120 can be implemented in a micro-controller, a microprocessor, a digital chip (DSP) chip, or an ASIC program that executes the functions described herein. 4. Transmission of forward link power control bits Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. Forward link power control bits can be transmitted to the base station 4 by one of the methods. In the exemplary embodiment, each remote station 6 has a forward link power control channel on the reverse link, which focuses on the transmission of the forward link power control bit. In another specific embodiment, wherein the focused power control channel is unavailable, the forward link power control bit can be inserted or mixed on the reverse link data bit stream similarly to the implementation on the forward call channel . In the exemplary embodiment, the forward link power control bit is transmitted to the base station 4 on the dedicated forward link power control channel. A method and device for providing a focused forward link power control channel has been described above. -30- This paper size applies the Chinese National Standard (CNS) A4 specification (210x 297 mm). The Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Printing A7 --- ---- B7 V. Description of the Invention (28) ~~~ " —I- US Patent Application No. 08 / 654,443 has been described in detail. Transmission timing diagrams of forward and reverse link power control bits are shown in FIG. In each power control group, each power control group depicted by the barred bar on the time base is transmitted on the forward call channel, as described in the top diagram of FIG. In the exemplary embodiment, the reverse link power control bit is transmitted with a power control group every 1.25 milliseconds, and each reverse link power control bit is a two symbol rate set at i for the duration. In addition, each reverse link power control bit can start from one of 16 positions, which is determined by a long PN sequence. --The remote station 6 processes the reverse link power control bit and transmits the -forward link power control bit to the base station 4 as a pulse on the reverse power control channel. In the exemplary embodiment, the pulse is transmitted with positive polarity to indicate a forward link power and control bit with zero ('0'), and negative polarity to indicate π, π). The timing and duration of the pulses are design parameters' which are described in the following specific embodiments. The choice of these parameters can be considered without departing from the scope of the invention. 'In the first ω-th embodiment, the forward link power control bit is transmitted as a pulse of 1.2? Seconds in length.' The last possible (ie, 16th) power control bit position on the forward channel Milliseconds start after that. This structure plus the center diagram has been described ', where the parameter K is set to 0.625 tail seconds. G.625 milliseconds-delay can allow the remote station 6 to be non-curved in the worst case forward link signal path. Before the combination, the non-f curved places ^ will properly arrange the signals from different signal paths, and ensure that the reverse link power control bit from the first W power control group is from -31-this paper standard Home Please Read Back-1¾ Note

I i Binding Line A7 Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs

V. Description of the invention (30) Α7 Β7 In the example printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs, the delay amount is less than 0.05 milliseconds (delay2 = 0.05 milliseconds). As described in Fig. 7, this specific embodiment requires the comparison of the pulse duration: the transmission power, in order to transmit the same energy over a shorter pulse duration. One disadvantage of this method is that the large output in short pulses of 800 hertz (Hz) can potentially cause a hearing-assisted sound frequency band to be thousands of thousands. ^ 8 1 1 silly. However, the remote station 6 may transmit the forward link power control bit at a fixed time after the reverse link power control bit and the reverse link power control bit are determined to be f. Will also be positioned arbitrarily. Any two; the starting position of the rate control bit will distribute energy at 800 Hz and reduce automatic interference. Furthermore, the inclination link power control channel transmitted on the reverse link from the remote station 6 is one of the remaining streams transmitted on the reverse link. Since the power in the bits is lower, the output power at the remote station 6 will change due to the smaller power control bits. Finally, in the fourth specific embodiment, the forward link power control bit will be transmitted after a fixed amount of time is 2 milliseconds. The following is the reception of the reverse link power control bit. In this specific embodiment, the sequence time of the forward link power control bit is variable and the heading; the transmission of the forward link power control bit will continue until the next forward two-junction power control bit Yuan schedule. The remote station 6 can transmit the Γ forward link power control bit, or the continuous _ = positive transmission gain of the element, in order to transmit the same energy to each bit. Referring now to FIG. 2, the forward link power control bit is processed by the power control processor 120 in the remote station 6. The power control processor 12 will calculate the forward link power bit, which is transmitted on the reverse link, and will send the second-class bit ^-(谙 Read the Qin notes on the back before filling this page) Order --- ----- 线 --------- 1.-I I-. Ί. -33 · The Zhang scale is applicable to China) ... Specifications (2ωχ297 公 幻

A7 _______B7 V. Description of the invention (31) " ~ transmitted to the modulator (M0D) 134 ❶ The modulator 134 covers the bits corresponding to the reverse power control channel with Walsh codes, and extends the coverage of long and short pN codes And provide extended information to the transmitter (TMTR) 136. The transmitter 136 can be made with the aforementioned U.S. Patent Application No. 08/654 443. The transmitter 136 filters, modulates, and amplifies the signal. The modulated signal is directed to the duplexer 104 and transmitted via the signal path 12 from the antenna 102 on the reverse link. At the base station 4, the reverse link signal is received by the antenna 30, led to the duplexer 28, and provided to the receiver (RCVr) 50. The receiver filters, amplifies, and downconverts to obtain the baseband signal. The baseband signal is supplied to a demodulator (DEMOD) 52. The demodulator 52 does not spread the baseband signal with the short pn code, does not cover the data with the same Walsh code as that used at the remote station 6, and provides the demodulated data to the controller 40. The demodulation data includes forward link power control bits. The controller 40 can adjust the increase of the forward communication channel and / or the transmission power of the base station 4 as indicated by the forward link power control bit. 5. The base station responds to the printing of the employee warehouse of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the notes on the back before filling out this page). In a specific embodiment, 'base station 4 can receive forward link power bits It transmits on the reverse power control channel and controls the gain of the forward call channel. In the exemplary embodiment, once receiving one ('Γ)' of the forward link power control bit, the base station 4 will increase the gain of the forward talk channel. Once receiving zero (' 0 ') ' base station 4 will reduce the benefits. The amount of gain increase or decrease is determined in production and system considerations. In the specific embodiment of the example, the gain can be increased or decreased in steps of 0.5 dB to 1.0 dB, although other steps __ -34- MoZun (0?) 8 4 regulations (2 丨 parent 297 public interest ) Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of Invention (32) Not available. The step size for gain increase can be the same or different from the step size for gain decrease. In addition, the step size of the gain can be generated by determining the gain of other forward-talking channels on the base station 4. The invention can be applied to all steps in gain adjustment. The base station 4 can also adjust the increase in gain, decrease in gain, or both as a speed function, and the degradation of the remote station 6. Base station 4 will do this' since the optimal step size is a function of the decay situation and the speed of remote station 6. For example, at very high speeds, smaller steps are too small to work better, since the power control bit rate is not fast enough to keep up with rapid decay. Since the forward link interleaver will attenuate evenly, the power control step size is only to increase the amplitude jump of the forward link waveform. However, fast power control requires dynamically adjusting the average waveform to the correct level. The demodulator 52 in the base station 4 can estimate the fading condition and the speed of the remote station 6. The searcher elements in the demodulator 52 can determine the number of multipath elements currently to be received and calculate their contours. These searcher elements have been registered in US Patent No. 5,109,390 under the heading "DIVERSITY RECEIVER IN A CDMA CELLULAR TELEPHONE SYSTEM" and US Patent Application No. 08 / 316,177, and titled "MULTIPATH SEARCH PROCESSOR FOR" on September 30, 1994. A SPREAD SPECTRUM MULTIPLE ACCESS COMMUNICATION SYSTEM ", both of which are designated as patents of the present invention, are listed here for reference only. The demodulator 52 can also estimate the speed of the remote station 6 by using the demodulation technique to estimate the reverse link frequency error, which is well known in the art. The frequency error is about 2 «f ^ v / c + s, where fc is the operating frequency, and v is the remote station. _______- 35- This paper is suitable for national standards & standard (CNS) A4 specifications (21GX 297) )----------- install-,-/ --- order ----, --- line (please read f. Note above t. Matters before filling this page) Economy Printed on A7 __________ B7 by the Ministry of Central Elevator Cooperative Cooperative V. 5. Description of the invention (33)-The speed of 6 'c is the speed of light, and 8 is the residual frequency error of remote station 6. In compliance with the TIA / EIA / IS-95-A standard, the remote station 6 can measure the frequency 'which is received on the forward link and uses this to set the transmission frequency on the reverse link. A discussion of setting the transmission frequency based on the measured reception frequency has been filed in U.S. Patent Application No. 08 / 283,30, and titled "METHOD AND APPARATUS FOR CONTROLUNO POWER IN A VARIABLE RATE COMMUNICATION" filed on July 29, "System", which has been designated as a patent of the present invention, is listed here for reference only. The remote station 6 does not remove the error from its own prosperity. This process will cause the Doppler poverty rate error of the frequency received at base station 4 as a frequency error of fc * v / c on the forward link and a frequency of 0v / c on the reverse link. Frequency is wrong. The error from the reception frequency and the transmission frequency set in the remote station 6 is ε. For a high speed movement, the error ε is quite small. Therefore, the demodulator 52 says to provide the speed and multiple path estimates to the controller 40, which then uses this information to determine the increase and decrease of the gain, and the step size. The base station 4 has a maximum transmission power, which is determined by system design restrictions and FCC rules. Inevitably, the base station 4 will experience a situation where the remote station 6 does not have sufficient available power when it requires an increase in benefits. If the base station 4 limits or ignores the gain increase command, because of insufficient transmission power, the FER of the forward communication channel can be increased. When this happens, the target energy level at the remote station 6 will increase substantially substantially. This is due to the upward step in equation (5), which is typically relatively larger than the downward step δ. If the poor channel condition disappears or the base station 4 can transmit extra power to the remote station 6, the target energy level ζ is set to an appropriate range. -36- This paper size applies to the Chinese National Standard (C ^ S) Λ4 specification (210X297mm) I '' ~~ (Please read the note of f and fill in this page first) -Consumer cooperation with staff of Central Standards Bureau of the Ministry of Economics Du printed A7 ------ I _ B7 V. Description of the invention (34) '~ The time used will be longer, since the downward step δ is typically smaller. In a preferred embodiment, the base station 4 will transmit the new radio signals in step r and downward step valleys, which are transmitted when the FER on the forward link is higher than the rated radio signal. In a specific embodiment, the FER efficiency of the forward talk channel is related to the target energy level z. Therefore, the base station 4 can directly adjust the target energy level z to obtain a desired FER. For example, if base station 4 confirms that the system is highly loaded and one or more remote stations 6 need to operate at higher FERs, base station 4 can be changed by transmitting a new target energy level z to -remote station 6 The target energy levels of these remote stations 6. Alternatively, the base station 4 can process the target energy level by commanding these remote stations 6 to use the new up step and down step δ. In the preferred embodiment of the example, at any time, the base station 4 cannot answer the power control command from the remote station 6, the base station 4 can adjust the target energy level, or step up and down to prevent power control The loop invades the maximum transmitted power and operates in a non-linear region. To determine the correct operation of the forward link power control structure without the remote station 6 requiring more or less than the required transfer power for the efficiency demand level, the base station 4 can monitor the FER of the forward call channel. In the exemplary embodiment, the remote station 6 can send an error message to the base station 4 whenever an error occurs in receiving a data frame. This error message can be the previously described deletion indicator bit (ΕΙΒ). 3 The base station 4 can monitor the error message from the remote station 6, calculate the FER, and process the target energy level z of the remote station 6, which is By specifying the appropriate 値 of the upward step r and the downward step δ of the remote station 6. 6. Gain correction structure __ -37- This paper size applies Chinese National Standard (CNS), \ 41 ^^ 777〇 < 297 Gongchu) ^-(谙 Read the note on the back side of the t-item (Fill in this page again)-Order A7

When the printing of employees' cooperatives in the Central Procurement Bureau of the Ministry of Economic Affairs is reduced, the forward link power control structure of the present invention can be performed better. In order to compensate for the decline of the forward call channel, the base station 4 will use the increased or reduced transmission power as soon as possible as required by the remote station 6. When the remote station 6 is not handed over, the forward link power bit TL is received by the single-base station 4 and it will adjust the gain of the forward call channel in response to the forward link power control bit. . The remote station 6 communicates with the multi-segment at the same time in the soft file fib. In the exemplary embodiment, a single channel element in base station 4 is used to control the communication between remote station 6 and all sectors in the soft parent. Therefore, the base station 4 can quickly receive the transmission power of all the sectors of the forward link power control bit from the remote station 6 with the positive station. -Remote station 6 can communicate with multiple base stations 4 in soft handover. Forward link power control for performing decentralized methods and devices for performance has been described in detail in previous U.S. Patent Application No. 08 / 710,335. Some base stations 4 may not receive a trusted stream of forward power control bits or unacceptable power control bits. In the present invention, the forward link power control correction structure is used to determine that the increase of the forward call channel of all base stations 4 in the active remote station 6 is correctly set, and by the forward adjustment of the base station 4 Incorrect reception to the link power control bit is not accumulated. In the exemplary embodiment, when the remote station 6 is in soft handover, the forward channel gain of the base station 4 receiving the reverse link signal is used by all the base stations 4 in the active member group. . The power control correction structure can be completed by the following specific embodiments. In the first specific embodiment, it is determined that the gain of the forward communication channel is approximately equal to all base stations 4 communicating with the remote station 4, and the selected forward link power is _____ 38- (CNS) 8 4 (210X297) Gongchu} --------- yiyi ----- J—.1Τ ------ # (Please read the notes on the back before filling out this page) 5. Description of the invention (36) Only the upper stream of the system will be provided to all base stations 4. For each data frame and all the base stations 4 in the Wang Dong member group will be received by the base station 4, to the link power control bit to A selector port selector in the system controller 2 will select the power control bit from the base station 4, which will receive the strongest reverse link signal. The selected power control bit will then be provided to the active member All base stations in the group 4. Each base station ^ receives the power from the selection link (the selected 疋 forward link power control bit, compares the selected bit with the actual received and processed bit, and re-adjusts the Gain on the channel frequency to determine the selected forward link power control bit. Yuan ° Engineering base station 4 The power control bits can be transmitted to the selection in the controller 40 as a backhaul data frame. The 11 ° backhaul data frame selection can be processed according to the existing procedures used in the TIA / E Hall_95-A system. After processing, the selector can control the selection of the forward link power control, 疋. The knife H L position is transmitted to all base stations 4 'It is the user call transmitted to the remote station 6 in the backhaul data frame In the second specific embodiment, each base station 4 will transmit the forward channel gain to the search 452 in each data frame, i.e., i to the selection state. The selector will select a base station that matches the base station. The increase of 4 'its jg, JA- ± L · r- / λ, said to receive a strong reverse connection signal. The selected gain is transmitted to the right φ private s ° Ministry of Economic Affairs Central Standards Bureau Staff Consumer Cooperatives India said Dan l, all base stations 4 in Wang Dong's member group, and base station 4 will therefore update the gains of the women and / or the priests. The selected gain is in the existing TIA / EIA / IS -95-A system only "from the search media u„ sl ，. T ， 疋 ％% 仑 仑 至 to the base station 4 to increase the profit 値. This The gain is implemented in the backhaul format, and is transmitted in the standard TIA / EIA / IS-634-A standard. It is transmitted on the interface A3 on the 4th. For reference. This paper size applies to the Chinese National Standard (CNS) Λ4 Regulation 39- (210X297 Gong) The Central Standards Bureau of the Ministry of Economic Affairs, Pai Gong Consumer Cooperative Press A7. 5. Description of the invention (37) '~~~ Due to processing delay The forward update of the forward call channel requires a certain idea. In the specific embodiment of the example, each base station 4 can adjust its forward = the gain of the call channel, which is based on the forward link from the remote station 6 Measurement of power control bits. However, the selector can determine the use of power control bits received by another base station *. This decision usually does not occur until the base station 5 has a pre-sufficient amount of time to measure itself using the forward link power control bit. Therefore, the base station 4 needs to adjust the gain-benefit of the forward communication channel based on the actual received power control bit of the base station * and the selected power control bit from the selector. The base station 4 also needs to describe the delay between the initial gain adjustment and the reception from the selected power control. In the exemplary embodiment, each base station 4 stores a storage gain, which is used by the base station 4 during each update. The selector transmits the selected power control bit (or selected gain) for base = station 4, which determines the fetch that the power control bit may have been received correctly. Each base station 4 then compares the gain, which is stored during the update, received by the selector, and updates the gain over the current time slot by different. The gain Gi of the first power control bit is as follows: Bu + υ (2 Bu 1) + called the factory ~ ⑷ "" ⑹ Among them, is the first! The benefit during the time slot, \ is the 丨 (one or zero) of the 丨 th power control bit, v is the size of the gain step, M is the number of power control bits in each data frame, and p is from the beginning of the data frame to the power The time gap compensation for the control bits transmitted from the base station 4 to the selector (〇 $ P $ mm) is the gain of the forward communication channel specified by the selector during the k-th data frame, ------ -----_-40 * This paper is suitable for financial and financial purposes---------- install-^-f--order ----,-line (please read the back first ** : Note * 'Fill in KT page again] Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 41-Α7 Β7 V. Description of the invention (38) where k = Li / M "' q is the compensation for the timing gap, which It is the time from the beginning of the data frame to the increase in profit when it is received at base station 4 and comes from (〇 《q 幺 M-1), and if i = j, δ; ″ is equal to 1, otherwise it is 〇 ^ in the specific implementation of the example In the example, μ is equal to 16, although other functions of VI can not be used and do not fall outside the scope of the present invention. An example timing diagram of the forward link power control correction structure is shown in FIG. 8. Forward call frequency The channel data frame and the backlink data frame are arranged almost at the same time, and the test score is only a delay in the air. The data frame (the duration of 20 milliseconds) is indicated as k, k + bu k + 2, and k + 3, and is described by the thick oblique bar in Figure 8. The data frame k of the reverse link data stream is received at the base station 4, and after some processing delay, it will be decoded during the data frame k + 1— For a period of time, as indicated in block 210. At the same time, base station 4 also processes forward link power control commands which are considered to have less processing delay. As such, the forward link of the shadow in the baseline is lower at Figure 8 ^ The power control bit is a 20 millisecond block describing the forward link power control bit, which is transmitted simultaneously with the same backhaul data frame together with the data frame k of the backlink data stream. During data frame k + 2, the selector The forward link power control bits TL from base station 4 will be selected, which will receive the strongest reverse link signal and transmit these selected power controls to base station 4 in the active member group at block 212. Typical 'selected power control bit Send in the backhaul data frame. Soon afterwards, in data frame k + 2, base station 4 will receive the selected power control bit from the selector and use the power control bit selected in block 2 ^ t according to the method described above. To correct the benefits of the forward call channel. With the start of data frame k + 3, base station 4 will transmit the updated base paper paper size (CNS Μ4ϋ1ί) x 297 Gongchu ------- --Crack --- J-Order ------- Line (Please read the note on the back before filling this page)

V. Description of the invention P A7 B7 Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs 4, as shown in box 216. The above example shows three data frames from the remote station 6 processing delay, which will transmit the forward link power control bits to the base station 4 to correct the benefits of the forward call channel. However, in the exemplary embodiment, 'each base station 4 can adjust the gain of its forward talk channel in response to the measurement of forward connection power control bits. In this way, each base station 4 can quickly adjust the forward communication channel gain on itself and reduce processing delay. Forward link power control correction structure, where the power control bit is from base station 4, which can measure the strongest reverse link signal, this structure can be used to correct the sequence of other base stations 4 in the active member group The increase in the call frequency 'guarantees erroneous reception by the power control bits of the base station 4. Other embodiments that ensure the correct operation of the forward link power control structure of all base stations 4 can be taken into account without departing from the scope of the present invention. Although the present invention describes a forward link power control structure, the inventive concept disclosed herein is applicable to reverse link power control. It is preferred that the embodiments be described as provided to enable any person skilled in the art to make or use the present invention. Various modifications of these specific embodiments will be apparent to those skilled in the art, and the principles defined herein may be applied to other specific embodiments that do not use the inventive function. Therefore, the present invention is not intended to be limited to the specific embodiments shown here, but to enable a broad range of models to conform to the principles and new features disclosed herein. Please k, read the back of the item, and fill in this page. Binding line -42- This paper size is applicable to China National Standard (CNS) Α4 Regulations (21〇 × 297)

Claims (1)

Jue Kua-kwan stated clearly whether the original substance would be changed after the amendment of this case, printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A8 B8 C8 D8 Patent Application No. 87106365 Chinese Patent Application Amendment (December 87) Patent Application Scope l-A method to control _ transmission power in a multiplexed access system 'includes the following steps: Measure the amplitude 値 of a first set of bits; compare the amplitude 値 with a target energy level; and generate: a second set of bits, which are generated in response to the comparison step; wherein the transmission power is based on the second set Bits. 2. If the scope of patent application is the first! The method of item, wherein the target 1 level is set at an initial stage of a communication and / or in response to a received measurement efficiency. 3. The method of claim 1 in the patent application scope further comprises: transmitting the second group of bits to a destination station; wherein the transmission power of the destination station is adjusted according to the second group of bits. 4. The method according to item 3 of the patent application scope, further comprising: adjusting the target energy level, which is in response to a measurement of the received signal's efficiency. 5. If the method of the scope of patent application, the method further includes: Correcting the transmission work according to a set of commands from a system controller. 6. If the method of the scope of patent application, the measurement further includes: receiving At least one signal path corresponding to the first set of bits; demodulating each of the at least one signal path 'to obtain a pilot signal and a filter data; calculating a dot product of the pilot signal and the filter data' To obtain a standard paper size applicable to China National Standard (CNS) A4 (210X297 mm) • · * nnnnnn II ni I .1— I II I____ 丁!-I— ------ i ---- --. 0¾ i · &quot;, (please read the notes on the reverse side and fill in this page first) The members stated that whether to change the original substance after the amendment of this case was printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. A8 B8 C8 D8 Patent Application No. 87106365 Chinese Patent Application Amendment (December 87) Patent Application Scope l-A method to control _ transmission power in a multiplexed access system 'includes the following steps: Measure the amplitude 値 of a first set of bits; compare the amplitude 値 with a target energy level; and generate: a second set of bits, which are generated in response to the comparison step; wherein the transmission power is based on the second set Bits. 2. If the scope of patent application is the first! The method of item, wherein the target 1 level is set at an initial stage of a communication and / or in response to a received measurement efficiency. 3. The method of claim 1 in the patent application scope further comprises: transmitting the second group of bits to a destination station; wherein the transmission power of the destination station is adjusted according to the second group of bits. 4. The method according to item 3 of the patent application scope, further comprising: adjusting the target energy level, which is in response to a measurement of the received signal's efficiency. 5. If the method of the scope of patent application, the method further includes: Correcting the transmission work according to a set of commands from a system controller. 6. If the method of the scope of patent application, the measurement further includes: receiving At least one signal path corresponding to the first set of bits; demodulating each of the at least one signal path 'to obtain a pilot signal and a filter data; calculating a dot product of the pilot signal and the filter data' To obtain a standard paper size applicable to China National Standard (CNS) A4 (210X297 mm) • · * nnnnnn II ni I .1— I II I____ 丁!-I— ------ i ---- --. 0¾ i · &quot;, (Please read the notes on the back before filling out this page) Employees' Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs, India and India A8 B8 C8 D8 A, Proportional output of patent application scope numbers; and combinations from The symbol ratio of the at least one signal path is obtained to obtain a combined ratio output; wherein the amplitude 値 of the first group bit of 1¾ is equal to the combined ratio output. 7. The method according to item 6 of the patent application scope, further comprising: filtering the combined proportional output to obtain the amplitude 値 of the first set of bits. * 8. The method according to item 6 of the scope of patent application, wherein the combination includes: successively summing up the symbol ratio outputs from the at least one signal path 'which carries the first set of bits-the same bit stream And sum up the absolute ratios of the symbol ratio outputs from the at least one signal path, which carry a non-identical bit stream of the first set of bits. 9_ The method according to item 4 of the patent application range, wherein the adjustment includes: I increasing the target energy level by an upward step in response to an error indication of a data frame; and a downward direction by an error indication of a data frame Steps to reduce the target energy level. 10. The method according to item 9 of the scope of patent application, the adjustment further comprises: if the amplitudes of the first group of bits are lower than a rated energy level, maintaining the target energy level. 11. The method according to item 9 of the scope of patent application, wherein the upward step and the downward step are set in an initial stage of a communication and / or in response to the measurement efficiency of the received is number. -2- This paper · size is bound by Chinese National Standard (CNS) A4 (2 丨 0X297mm) binding. Thread (please read the precautions on the back before filling this page) — 6. Scope of patent application 12. If you apply The method of item 9 of the patent, wherein the upward step and the tiger step are functions of the target energy level. • If applying for the method of item 9 of the patent scope, the adjustment includes: maintaining the target energy level in response to the error indication of two consecutive data frames; and the step of increasing the child is in response to an error indication of one data frame and in the two One of the previous data frames has no data frame errors. ί 4. The method of claim 5, wherein the correction includes: receiving at least one of the second set of bits; and selecting a selection from the at least one of the second set of bits The bit of the group; wherein the transmission power is corrected according to the bit of the selected group. 15 · :: The method of item 3 of the patent scope, wherein each of the second set of bits will be transmitted, and a fixed position of a nearest possible power control bit from the first set of bits will be transmitted. After the delay, each bit of the second group is transmitted. For example, the method of claim 3, wherein the second group of bits are transmitted after a fixed delay from the first group =. 17. According to the method of claim 3 in the scope of patent application, the female bit of the second group of Yuan-Yun Temple is transmitted at the same time as the buffer with less than one power control group. <One pulse of% time 18; = Equipment for controlling 1 round of power in a coded multiplex access system • Ι-- 1 I-HI m I (Please read the precautions on the back before filling this page) Binding -3 This paper is again applicable to China's National Standards. (CNS) Α4 is now available (2 丨 〇 X 297 public directors), 11--1 I--II i Central Standards of the Ministry of Economics, printed by employee consumer cooperatives Λ8 Βδ C8 D8 6. The scope of patent application The first power control loop is used to maintain the quality of a received signal at the target energy level. The first power control loop is receiving-receiving a first set of levels and a target energy level. 'And provide a second set of bits in response to the first set of bits and the target energy level; and a second power control loop to maintain a measurement efficiency of the received signal, the second power control The loop receives an indication of a data frame error and an efficiency threshold, and provides the target energy level to the first power control loop in response to the measurement efficiency and the efficiency threshold. 19. The device according to item 18 of the scope of patent application, wherein the first power control loop includes: a receiver device: for receiving at least one signal path conforming to the first group of bits; a demodulator device for Demodulating each of the at least one signal path to obtain a symbol proportional output; a combining device for combining the J-numbered proportional output from the at least one signal path to obtain a combined proportional output; and a comparing device, Used to compare the combined ratio output with the target energy level, and used to generate the second set of bits in response to the comparison. 20. The device as claimed in claim 18, wherein the second power control circuit includes: a critical adjustment circuit device for increasing the target energy level by an upward step, which is in response to a data frame error The instruction indicates that the target energy level is lowered by a downward step, and the response is that no data frame error occurs. -4- Clothes paper * The scale applies to China ^^ 准 (CNS) Α4ί £ ^ 2ι () χ297 male thin (Please read the precautions on the back before filling this page) Printed by the Consumer Affairs Cooperative of the Central Government Bureau of the Ministry of Economic Affairs A8 BS C8 D8 6. Application for patent scope 21. For the device with scope of patent application item 19, the demodulator device will demodulate each of the at least one signal path To obtain a pilot signal and filtering data, and the demodulator device further includes: a dot product circuit device for generating the symbol proportional output based on the pilot signal and the filtering data. 22. The device according to item 20 of the scope of patent application, wherein the first power control loop further includes: furnace wave benefit device for filtering and wave the combined proportional output to obtain a filtered output; and a COSCO comparison device thereof The comparison is made between the chirped wave output and the target energy level. 23. The device of claim 20, wherein the target energy level is set at an initial stage of a communication and / or a measurement efficiency in response to the received signal. 24. The device according to Item 20 of the patent application park, wherein the upward step and the downward step are set in an initial stage of communication and / or a measurement efficiency of the received signal. 25. A controller of a base station in a wireless communication system, including one or more base stations and one or more remote stations, the controller includes: a transmitter for a remote station A communication signal and a power control signal are simultaneously transmitted in a first transmission channel; a receiver is for a signal in a second transmission channel from a remote station, and the signal indicates that the signal is from the first transmission channel at the remote station. An attribute of the received power control signal; and -5- This paper size applies to the Chinese National Standard (CMS) A4 pit (2 丨 0X297 cm) IIIIIIIII —.1 I Order (please read the precautions on the back before filling (This page) ABCD VI. Patent application scope: "Controller" is used to process and control the signals received by the receiver, and the signals are transmitted by the first transmission channel; the power control signals are transmitted. 26. A remote station for use in a wireless communication system, which includes one or more base stations and—or multiple remote stations, the remote station includes: A base station in a transmission channel receives both one or more communication signals and the transmitted power control signal at the same time;-processing for processing one or more received signals by the receiver in order to remove power control signals Deriving the chirp or multiple signal attributes received by the receiver; and a transmitter 'for transmitting a base station signal in a second transmission channel at a chirp transmission power determined by the received power control signal, The signal indicates the attribute of the received communication signal. n 1. n II I ~. Pack 11 (I Iir.. Line · (please read the note i on the back before filling in this card)) Printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy-6 paper sizes. Use Chinese National Standard (CNS) a4 specification (2 丨 0XZ97 mm